气候变化领域集成服务门户(CCPortal): Uncertainty in atmospheric profiles and its impact on modeled convection development at Nam Co Lake, Tibetan Plateau

CCPortal

DOI	10.1002/2013JD020647
	Uncertainty in atmospheric profiles and its impact on modeled convection development at Nam Co Lake, Tibetan Plateau
	Gerken, Tobias; Babel, Wolfgang; Sun, Fanglin; Herzog, Michael; Ma, Yaoming; Foken, Thomas; Graf, Hans-F.
通讯作者	Gerken, T (通讯作者)
发表日期	2013
ISSN	2169-897X
EISSN	2169-8996
起始页码	12317
结束页码	12331
卷号	118 期号:22
英文摘要	This work investigates the influence of atmospheric temperature and relative humidity profiles obtained from radio soundings, NCEP-I and ERA-Int reanalysis and GFS-FNL analysis data on the simulated evolution of clouds and convection at Nam Co Lake on the Tibetan Plateau. In addition to differences in moisture, the initial atmospheric profiles exhibit considerable differences in near-surface temperatures that affect vertical stability. Our analysis is carried out during 2 days in summer 2012 using a 2-D high-resolution modeling approach with a fully interactive surface model so that surface fluxes react to changes in cloud cover. Modeled convection for the radio-sounding profile compares reasonably well with weather observations for the first day, but less well for the second day, when large-scale synoptic effects, not included in the model, become more important. The choice of vertical profile information leads to strongly differing convection development, translating into modifications of the surface energy balance and of the energy and water cycle for the basin. There are strong differences spanning one order of magnitude in the generated precipitation between the model simulations driven by different vertical profiles. This highlights the importance of correct and high-resolution vertical profiles for model initialization.
关键词	SURFACE-TEMPERATURE FORECAST SYSTEM CLIMATE-CHANGE ERA-INTERIM PRECIPITATION SIMULATION WATER SUMMER CONFIGURATION MOISTURE
英文关键词	Tibetan Plateau; surface-atmosphere interactions; clouds; atmospheric profiles
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000330266000009
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258189
推荐引用方式 GB/T 7714	Gerken, Tobias,Babel, Wolfgang,Sun, Fanglin,et al. Uncertainty in atmospheric profiles and its impact on modeled convection development at Nam Co Lake, Tibetan Plateau[J]. 中国科学院青藏高原研究所,2013,118(22).
APA	Gerken, Tobias.,Babel, Wolfgang.,Sun, Fanglin.,Herzog, Michael.,Ma, Yaoming.,...&Graf, Hans-F..(2013).Uncertainty in atmospheric profiles and its impact on modeled convection development at Nam Co Lake, Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,118(22).
MLA	Gerken, Tobias,et al."Uncertainty in atmospheric profiles and its impact on modeled convection development at Nam Co Lake, Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 118.22(2013).